Disc brake with wedge pins

Details Disc brake with wedge pins Disc brake with wedge pins

1982-10-12

1983-12-06

Butler, Douglas C.

Brakes

Wheel

Axially movable brake element or housing therefor

188 7335, 403297, 403356, 403374, 403409, F16D 6502

Patent

active

044187980

ABSTRACT:
A floating-caliper disc brake (1) includes a non-rotating torque member (36) which carries the caliper (22) in fixed radial position relative to the disc (12) via a pair of pins (56, 58). The torque member and caliper each have matching grooves (44, 46, 48, 50) which, when placed in registry, define a pair of apertures (52, 54) between the caliper and the arms (38, 40) of the torque member. The pins are complementary in cross-section to the shape of these apertures so as to space apart the caliper and the torque member when the pins are inserted into the apertures. Brake torque is transferred from the caliper to the torque member solely through the pins. Sliding of the caliper along the pins provides for axial movement of the caliper relative to the torque member and brake rotor, but the caliper is otherwise restrained from movement in the radial and circumferential directions. One of the pins (58) includes a pair of opposed wedge-defining members (66, 68). The wedge-defining members are resiliently biased into engagement with each other to eliminate radial and circumferential clearances between the caliper and torque member. The pins are made from a polymer mixture having physical properties tailored to the needs of disc brakes.

REFERENCES:
patent: 402213 (1977-05-01), Schafer et al.
patent: 3425519 (1969-02-01), Frigger
patent: 3436106 (1969-04-01), Luenberger
patent: 3616876 (1971-11-01), Brooks
patent: 3648807 (1972-03-01), Lottridge et al.
patent: 3862808 (1975-01-01), Perini
patent: 4084665 (1978-04-01), Burnett
patent: 4263361 (1981-04-01), Hodes et al.
patent: 4310075 (1982-01-01), Johannesen et al.
patent: 4318458 (1982-03-01), Ritsema
patent: 4331221 (1982-05-01), Evans et al.

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